Gas lighter



E. PROJAHN GAS LIGHTER Jan. 12, 1965 Filed Nov. 1, 1962 United StatesPatent 3,164,977 GAS LIGHTER Emil Projahn, Numberg, Germany, assignor toGebruder Koliiseh, Nurnberg, Germany Fiied Nov. 1, 1962, Ser. No.234,695 Ciainis. (Cl. 677.t)

The present invention relates to a gas lighter with a burner regulatingscrew arranged adjacent to the bottom of the lighter and covered by theouter jacket of the lighter. For purposes of adjusting the height of theflame of such lighter, as they are heretofore known, special tools as,for instance wrenches or screwdrivers are required. Such tools, however,are not always available.

It is therefore an object of the present invention to provide a lighterof the above-mentioned general type, which will have associatedtherewith an adjusting key for adjusting the height of the flame.

It is another object of this invention to provide a lighter as set forthin the preceding paragraph, in which the height of the flame can easilybe adjusted from the outside of the lighter.

These and other objects and advantages of the invention will appear moreclearly from the following specification in connection with theaccompanying drawing, in which:

FIGURE 1 diagrammatically illustrates partially in view and partially insection a lighter according to the present invention with the adjustingkey in pulled-out condition;

FIGURE 2 is a section through the burner pipe;

FIGURE 3 represents the adjusting key and spring pertaining thereto.

The present invention is characterized primarily in that the adjustingkey is so designed that it can protrude from the jacket and can bereturned into the jacket. The lighter has mounted thereon an adjustingkey which, when in rest position, has its bit engaging an arm of abayonet slot of the burner adjusting screw so that the key-head will becompletely or nearly submerged in the jacket.

Referring now to the drawing in detail, the lighter illustrated in FIG.1 comprises a fuel reservoir 2 which is flanged at 4 and 5 for holdingthe burner tube 3 soldered to reservoir 2. The upper and lower portionsof the burner tube 3 are provided with threads 6 and 7, respectively. Acylindrical tube 8 with a bore 9 is by means of a threaded extension 13screwed into the burner tube 3. The cylindrical tube 8 has its upper endprovided with a flange 10 on which is arranged a conical head 11. Anannular seal 12 is interposed between flange 1i) and tube 8. Tube 3 hasa portion of its length provided with a longitudinal slot 14 whichcommunicates with the bore 9, the upper portion of said slot beingprovided with a lateral branch 15. The burner tube 3 has a transversebore 16 communicating with the interior of the fuel reservoir 2. Mountedon the conical head 11 is a gas permeable pad 17 on which is provided afilter 18. In the upper portion of the burner tube 3, at threads 6,there is arranged a burner head 19 provided with an outer thread. Thisburner head '19 has a nozzle 20 which cooperates with a key valve '21known per se, and located at the lower end of head 19. Valve 21 restsagainst a collar 22 of the lower portion of the burner head which latterrests against filter 18. The jacket body is provided with a bore 23 intowhich extends a displaceable adjusting key or member 24 3,lhi,77Patented Jan. 12, 1965 ice having a knurled head 25 and a knurledbottom. Key or member 24 has a bit or pin 26 which latter engages slot14, 15. The upper end of key '24 has a stud 27 for receiving a portionof a spring 28 which latter is mounted in bore 9 above the adjustingkey.

Spring 28 continuously urges the key 24 outwardly and pushes the sameout of jacket 1 when bit 26 has been moved from slot arm 15 into slot 14by a corresponding rotation of the key. Arm 15 serves as a stop-notchfor bit 26 when key 24 has been pressed into the jacket.

The adjusting key 24 is directly connected to burner 20 inasmuch as whenkey 24 has been pulled down, its bit 26 engages slot 14 of tube 8. Ifhead 25 of key 24 is turned, tube 8 is displaced upwardly or downwardlyby means of thread 13 in burner-head 3 so that pad 17, 18 will becompressed to a more or less extent and thus will become more or lessgas-permeable, thereby effecting a control of the flame. These adjustingmeans are applicable in the same manner for lighters having a fixedlyarranged fluid reservoir and also for lighters with interchangeablefluid reservoin It is, of course, to be understood that the presentinvention is, by no means, limited to the particular construction shownin the drawing, but also comprises any modifications within the scope:of the appended claims.

What I claim is:

1. In a lighter; a housing, a fuel reservoir in the housing, a tube inthe housing extending from top to bottom thereof and internally threadedat its opposite ends, a burner head threaded into the upper end of thehousing, means connecting the burner head with the reservoir andincluding a flame control element at the bottom of the burner head, atubular adjusting element threaded into the bottom of the tube andengaging the flame control member and operable for adjusting the flamecontrol member to adjust the rate of fuel supply to said burner headupon rotation of the said element, a key member reciprocably mounted inthe adjusting element and having a first idle position wherein the majorportion of the member is within the element and a second workingposition wherein the major portion of the member projects from theelement, and pin and slot means in said member and element drivinglyconnecting the same while permitting axial movement of the member in theelement.

2. In a lighter; a housing, a fuel reservoir in the housing, a tube-inthe housing extending from top to bottom thereof and internally threadedat its opposite ends, a burner head threaded into the upper end of thehousing, means connecting the burner head with the reservoir andincluding a [flame control element at the bottom of the burner head, atubular adjusting element threaded into the bottom of the tube andengaging the flame control member and operable for adjusting the flamecontrol member to adjust the rate of fuel supply to said burner headupon rotation of the said element, a key member reciprocably mounted inthe adjusting element and having a first idle position wherein the majorportion of the member is within the element and a second workingposition wherein the major portion of the member projects from theelement, a pin projecting laterally from said member, and a slot in saidelement extending from near the lower end thereof upwardly along theelement and terminating in a circumferential offset to receive said pinand lock said member in its said first position.

3 l 3. The arrangement according to claim 2 wherein a 5. The arrangementaccording to claim 4 wherein said spring is provided in said elementurging said member tomember has a head on the lower end engageable withward the said e ond position, the lower end of the tube to limit theadjustment of said 4. The arrangement according to claim 3 wherein the'in 0 d ti n. lower' wall of the housing is spaced from the lower wall IReieremes cited in the m of this pamnt of said fuel reservoir and saidmember has a knurled N 7 TD h m head thereon which is substantiallyflush with the bottom STAILS PILENTD surface of said housing when saidmember is in its said 218361044 Zghwggar M213 1958 firstposifion2,846,861 Nissen Aug. 12, 1958 2,395,318 Zellweger July 21, 1559

1. IN A LIGHTER; A HOUSING, A FUEL RESERVOIR IN THE HOUSING, A TUBE INTHE HOUSING EXTENDING FROM TOP TO BOTTOM THEREOF AND INTERNALLY THREADEDAT ITS OPPOSITE ENDS, A BURNER HEAD THREADED INTO THE UPPER END OF THEHOUSING, MEANS CONNECTING THE BURNER HEAD WITH THE RESERVOIR ANDINCLUDING A FLAME CONTROL ELEMENT AT THE BOTTOM OF THE BURNER HEAD, ATUBULAR ADJUSTING ELEMENT THREADED INTO THE BOTTOM OF THE TUBE ANDENGAGING THE FLAME CONTROL MEMBER AND OPERABLE FOR ADJUSTING THE FLAMECONTROL MEMBER TO ADJUST THE RATE OF FUEL SUPPLY TO SAID BURNER HEADUPON ROTATION OF THE SAID ELEMENT, A KEY MEMBER RECIPROCABLY MOUNTED INTHE ADJUSTING ELEMENT AND HAVING A FIRST IDLE POSITION WHEREIN THE MAJORPORTION OF THE MEMBER IS WITHIN THE ELEMENT AND A SECOND WORKINGPOSITION WHEREIN THE MAJOR PORTION OF THE MEMBER PROJECTS FROM THEELEMENT, AND PIN AND SLOT MEANS IN SAID MEMBER AND ELEMENT DRIVINGLYCONNECTING THE SAME WHILE PERMITTING AXIAL MOVEMENT OF THE MEMBER IN THEELEMENT.